The Λ(1405) in resummed chiral effective field theory
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Xiu-Lei Ren
- E Epelbaum
- J Gegelia
- U-G Meissner
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000680861900005&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1140/epjc/s10052-021-09386-0
- eISSN
- 1434-6052
- Externe Identifier
- Clarivate Analytics Document Solution ID: TU2HU
- ISSN
- 1434-6044
- Ausgabe der Veröffentlichung
- 7
- Zeitschrift
- EUROPEAN PHYSICAL JOURNAL C
- Artikelnummer
- ARTN 582
- Datum der Veröffentlichung
- 2021
- Status
- Published
- Titel
- The Λ(1405) in resummed chiral effective field theory
- Sub types
- Article
- Ausgabe der Zeitschrift
- 81
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:title>Abstract</jats:title><jats:p>We study the unitarized meson–baryon scattering amplitude at leading order in the strangeness<jats:inline-formula><jats:alternatives><jats:tex-math>$$S=-1$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mo>-</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>sector using time-ordered perturbation theory for a manifestly Lorentz-invariant formulation of chiral effective field theory. By solving the coupled-channel integral equations with the full off-shell dependence of the effective potential and applying subtractive renormalization, we analyze the renormalized scattering amplitudes and obtain the two-pole structure of the<jats:inline-formula><jats:alternatives><jats:tex-math>$$\Lambda (1405)$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Λ</mml:mi><mml:mo>(</mml:mo><mml:mn>1405</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>resonance. We also point out the necessity of including higher-order terms.</jats:p>
- Autoren
- Xiu-Lei Ren
- E Epelbaum
- J Gegelia
- U-G Meißner
- DOI
- 10.1140/epjc/s10052-021-09386-0
- eISSN
- 1434-6052
- ISSN
- 1434-6044
- Ausgabe der Veröffentlichung
- 7
- Zeitschrift
- The European Physical Journal C
- Sprache
- en
- Artikelnummer
- 582
- Online publication date
- 2021
- Datum der Veröffentlichung
- 2021
- Status
- Published
- Herausgeber
- Springer Science and Business Media LLC
- Herausgeber URL
- http://dx.doi.org/10.1140/epjc/s10052-021-09386-0
- Datum der Datenerfassung
- 2023
- Titel
- The $${\varvec{\Lambda (1405)}}$$ in resummed chiral effective field theory
- Ausgabe der Zeitschrift
- 81
Datenquelle: Crossref
- Beziehungen:
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